package com.example.demo;

import java.util.Arrays;

import org.springframework.boot.Banner;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;

@SpringBootApplication //same as @Configuration @EnableAutoConfiguration @ComponentScan
public class DemoApplication {
	public static void main(String[] args) {
		SpringApplication application = new SpringApplication(DemoApplication.class);
		application.setBannerMode(Banner.Mode.OFF);
		application.run(args);
		SpringApplication.run(DemoApplication.class,args);
	}

	@Bean
	public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
		return args -> {

			System.out.println("Let's inspect the beans provided by Spring Boot:");

			String[] beanNames = ctx.getBeanDefinitionNames();
			Arrays.sort(beanNames);
			for (String beanName : beanNames) {
				System.out.println(beanName);
			}
		};
	}
}
